Avery Products - Avery - Inkjet-Compatible Greeting Cards w/Envelopes, 5-1/2 x 8-1/2, 30/Box - Sold As 1 Box - Create custom cards perfect for invitations, announcements and other mailings. - Sheets perforated for easy separation. - It's easy to Just Click & Create with Avery Templates in over 100 popular software programs. - Heavyweight stock is coated for vibrant color. - Includes coordinating envelopes. Create custom cards perfect for invitations, announcements and other mailings. Sheets perforated for easy separation. It's easy to Just Click & Create with Avery Templates in over 100 popular software programs. Heavyweight stock is coated for vibrant color. Includes coordinating envelopes.